Figure 1From: Modelling human musculoskeletal functional movements using ultrasound imaging The schematic principle of MACI. The principle of transforming an ultrasound image sequence (a) to PCA (c) by means of the wavelet transform (b). A multivariate image space, an ultrasound loop—a series of images. (b) The congruent images are put as the rows of an ordinary two-way data table. This means that each row corresponds to a point, or frame, in time. The columns contain wavelet coefficients. (c) A two-component PCA score plot of the table of wavelet coefficients, i.e. the second score vector, t2, plotted against the first score vector, t1.Back to article page